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You searched for: subject:"economic analysis"
[texts]Cost-Effectiveness Analysis for Wind Energy Projects
This paper presents the cost effectiveness indicators or methods for economic cost analysis applied to wind energy projects. It discusses about Levelezed Cost of Energy (LCOE), Total Life-Cycle Cost (TLCC), Net Present Cost (NPC), Levelized Electricity Generation Cost (LEGC) and Unitary Present Average Cost (UPAC). For each indicator studied is pointed out its bottlenecks about the application in evaluation and management of wind energy projects directly...
Keywords: Cost-Effectiveness; Economic Analysis; Wind Energy; WECS
Downloads: 8
[texts]Parametric Optimization of Solar Assisted Bioreactor
This study involves utilization of solar energy through the use of the solar collectors combined with the heat exchanger to keep the digestor at the optimum temperature throughout the year. The thermal and economic analysis of 2m3 solar heated biogas plant has been carried out and the effect of operating parameters on commulative solar savings is investigated. This is done by calculating the losses from the digestor and compensating these losses by using solar energy...
Keywords: Biogas production; solar energy application; Thermal analysis; Economic analysis
Downloads: 4
[texts]Space shuttle food system study. Volume 1: System design report - NON
Data were assembled which define the optimum food system to support the space shuttle program, and which provide sufficient engineering data to support necessary requests for proposals towards final development and installment of the system. The study approach used is outlined, along with technical data and sketches for each functional area. Logistic support analysis, system assurance, and recommendations and conclusions based on the study results are also presented.
Keywords: ENERGY REQUIREMENTS; JAPAN; COMMERCE; CRUDE OIL; ECONOMIC ANALYSIS
Downloads: 121
[texts]Radiation Protection for Lunar Mission Scenarios - Clowdsley, Martha S.
Preliminary analyses of shielding requirements to protect astronauts from the harmful effects of radiation on both short-term and long-term lunar missions have been performed. Shielding needs for both solar particle events (SPEs) and galactic cosmic ray (GCR) exposure are discussed for transit vehicles and surface habitats. This work was performed under the aegis of two NASA initiatives. The first study was an architecture trade study led by Langley Research Center (LaRC) in which a broad range ...
Keywords: DESIGN ANALYSIS; ECONOMIC ANALYSIS; STANDARDIZATION; EXPERIMENTATION; HUMAN FACTORS ENGINEERING
Downloads: 97
[texts]ANALYSIS OF MINERAL OIL BY SOLID-LIQUID ELUTION CHROMATOGRAPHY - STEJARU, D.
A GOOD SEPARATION OF MONO-, DI-, TRI-, AND TETRACYCLIC AROMATIC HYDROCARBONS WAS ACHIEVED BY THE METHOD OF ADSORPTION CHROMATOGRAPHY ON NEUTRAL ALUMINA. THE ADVANTAGE OF THE METHOD IS CONSIDERED TO BE THAT SATURATED HYDROCARBONS AND RESINS ARE SEPARATED IN A SINGLE OPERATION. THE UV-MONITORING OF THE ELUTED FRACTIONS SHOWED THAT THERE WAS PRACTICALLY NO MUTUAL CONTAMINATION OF THE HYDROCARBON FRACTIONS.
Keywords: ECONOMIC ANALYSIS; SPACE SHUTTLES; SPACE TRANSPORTATION; COST EFFECTIVENESS; ECONOMIC FACTORS
Downloads: 138
[texts]Highway reconfiguration study : project summary report (Volume 2005) - Wornum, Christopher
"May 2005"
Keywords: Roads; Roads; Highway planning; Economic analysis; Transportation policy
Downloads: 80
[texts]Transportation regional economic development Theodore Roosevelt Expressway : final (Volume 2007 APR FIN) - HDR HLB Decision Economics, Inc
Cover title
Keywords: Economic analysis; Express highways; Transportation; Transportation; National Highway System
Downloads: 558
[texts]Flight data of electric field thunderstorm research international project, trip 76, July 1976 - Kasemir, H. W
Graphs of the gradient components (negative electric field components) recorded on three airplanes, at Kennedy Space Center, Florida are presented.
Keywords: COST EFFECTIVENESS; ECONOMIC ANALYSIS; COMPUTER PROGRAMS; DECISION MAKING; ENERGY TECHNOLOGY; MANAGEMENT PLANNING; METHODOLOGY; SOLAR CELLS
Downloads: 84
[texts]Utilization of oxygen difluoride for syntheses of fluoropolymers - NON
The reaction oxygen difluoride, OF2, with ethylenically unsaturated fluorocarbon compounds is examined. Depending upon the fluorocarbon material and reaction conditions, OF2 can chain extend fluoropolyenes, convert functional perfluorovinyl groups to acyl fluoride and/or epoxide groups, and act as a monomer for an addition type copolymerization with diolefins.
Keywords: ECONOMIC ANALYSIS; TECHNOLOGY UTILIZATION; COST ESTIMATES; ECONOMIC FACTORS; NASA PROGRAMS; RESEARCH AND DEVELOPMENT
Downloads: 65
[texts]Approach to reliability when applying new technologies - Bear, J. C
Tactical weapon systems, while different in many respects from PTTI applications, face similar risks in achieving reliability in development. General principles derived from experience in achieving high reliability in tactical weapon systems are selectively summarized for application to new technologies in unusual environments.
Keywords: FABRICATION; PROCESS CONTROL (INDUSTRY); SEMICONDUCTORS (MATERIALS); SILICON; ECONOMIC ANALYSIS; LOGISTICS; PLANT DESIGN; PRODUCTION ENGINEERING
Downloads: 60
[texts]Cost averaging techniques for robust control of flexible structural systems - Hagood, Nesbitt W.
Viewgraphs on cost averaging techniques for robust control of flexible structural systems are presented. Topics covered include: modeling of parameterized systems; average cost analysis; reduction of parameterized systems; and static and dynamic controller synthesis.
Keywords: ECONOMIC ANALYSIS; ROBOTS; ECONOMICS; ECONOMY; POLICIES; THEOREM PROVING; TURING MACHINES; FORECASTING; HYPOTHESES; RECURSIVE FUNCTIONS
Downloads: 64
[texts]A Deterministic Interfacial Cyclic Oxidation Spalling Model - Smialek, James L
An equation has been developed to model the iterative scale growth and spalling process that occurs during cyclic oxidation of high temperature materials. Parabolic scale growth and spalling of a constant surface area fraction have been assumed. Interfacial spallation of the only the thickest segments was also postulated. This simplicity allowed for representation by a simple deterministic summation series...
Keywords: AGRICULTURAL AIRCRAFT; OPERATING COSTS; AGRICULTURE; COMMERCE; ECONOMIC ANALYSIS; HERBICIDES; INSECTICIDES; FERTILIZERS; FARMLANDS; COST REDUCTION
Downloads: 77
[texts]Canard-body-tail missile test at angles of attack to 50 deg in the Ames 11-foot transonic wind tunnel - Allen, C. Q.
Blunted ogive cylinder missile models with a length-to-diameter ratio of 10.4 were tested at transonic speeds and large angles of attack in an 11 foot transonic wind tunnel. The configurations are: body, body with tail panels, body with canards, and body with canards and tails. Forces and moments from the entire model and each of the eight fins were measured over the pitch range of 20 deg to 50 deg, and roll angles of 0 deg to 45 deg and canard deflection angles between 0 deg and 15 deg...
Keywords: AIR CARGO; AIR TRANSPORTATION; REGULATIONS; AIRCRAFT NOISE; AIRLINE OPERATIONS; ECONOMIC ANALYSIS; LAW (JURISPRUDENCE); PREDICTIONS
Downloads: 165
[texts]Apollo mission 17 lunar photography index maps - NON
An atlas is presented of photographic maps of the lunar surface.
Keywords: ENERGY TECHNOLOGY; FEASIBILITY ANALYSIS; WINDPOWER UTILIZATION; COSTS; ECONOMIC ANALYSIS; PERFORMANCE TESTS; WINDMILLS (WINDPOWERED MACHINES); WINDPOWERED GENERATORS
Downloads: 144
[texts]On nonlinear Tollmien-Schlichting/vortex interaction in three-dimensional boundary layers - Davis, Dominic A. R.
The instability of an incompressible three-dimensional boundary layer (that is, one with cross-flow) is considered theoretically and computationally in the context of vortex/wave interactions. Specifically the work centers on two low amplitude, lower-branch Tollmien-Schlichting waves which mutually interact to induce a weak longitudinal vortex flow; the vortex motion, in turn, gives rise to significant wave-modulation via wall-shear forcing...
Keywords: ECONOMIC IMPACT; NASA PROGRAMS; RESEARCH AND DEVELOPMENT; TECHNOLOGY TRANSFER; AERONAUTICAL ENGINEERING; ECONOMIC ANALYSIS; PULSE COMMUNICATION
Downloads: 78
[texts]Computers Take Flight: A History of NASA's Pioneering Digital Fly-By-Wire Project - Tomayko, James E
An overview of the NASA F-8 Fly-by Wire project is presented. The project made two significant contributions to the new technology: (1) a solid design base of techniques that work and those that do not, and (2) credible evidence of good flying qualities and the ability of such a system to tolerate real faults and to continue operation without degradation. In 1972 the F-8C aircraft used in the program became he first digital fly-by-wire aircraft to operate without a mechanical backup system.
Keywords: AIRLINE OPERATIONS; TRANSPORTATION NETWORKS; NETWORK ANALYSIS; ECONOMIC ANALYSIS; COMPETITION; MANAGEMENT METHODS; ECONOMIC FACTORS; REGULATIONS
Downloads: 308
[texts]LTA-9 FEASIBILITY STUDY REPORT - NON
No Abstract Available
Keywords: MONTANA; RURAL AREAS; WINDPOWERED GENERATORS; ECONOMIC ANALYSIS; ENERGY CONVERSION EFFICIENCY; RESIDENTIAL AREAS
Downloads: 121
[texts]Timber vs. composite/plastic pile fender systems in Pearl Harbor maintenance cost comparison - Alling, Joseph.
"December 1996."
Keywords: MAINTENANCE; ECONOMIC ANALYSIS; COMPOSITE MATERIALS; COMPOSITE STRUCTURES; TREES; SURVEYS; PIERS; WOOD; PEARL HARBOR
Downloads: 100
[texts]Solar variability indications from Nimbus 7 satellite data - Hickey, J. R.
The cavity pyrheliometer sensor of the Nimbus 7 Earth Radiation Experiment indicated low-level variability of the total solar irradiance. The variability appears to be inversely correlated with common solar activity indicators in an event sense. the limitations of the measuring system and available data sets are described.
Keywords: LIFE CYCLE COSTS; OPERATING COSTS; PROJECT MANAGEMENT; DEEP SPACE NETWORK; ECONOMIC ANALYSIS; MATHEMATICAL MODELS; POLYNOMIALS
Downloads: 76
[texts]NASA/RAE collaboration on nonlinear control using the F-8C digital fly-by-wire aircraft - Butler, G. F.
Design procedures are reviewed for variable integral control to optimize response (VICTOR) algorithms and results of preliminary flight tests are presented. The F-8C aircraft is operated in the remotely augmented vehicle (RAV) mode, with the control laws implemented as FORTRAN programs on a ground-based computer. Pilot commands and sensor information are telemetered to the ground, where the data are processed to form surface commands which are then telemetered back to the aircraft...
Keywords: AERONAUTICAL ENGINEERING; ECONOMIC ANALYSIS; AERODYNAMICS; CIVIL AVIATION; RESEARCH MANAGEMENT; TECHNOLOGY ASSESSMENT
Downloads: 128
[texts]Reliable Transport over SpaceWire for James Webb Space Telescope (JWST) Focal Plane Electronics (FPE) Network - Rakow, Glenn
NASA's James Webb Space Telescope (JWST) faces difficult technical and budgetary challenges to overcome before it is scheduled launch in 2010. The Integrated Science Instrument Module (ISIM), shares these challenges. The major challenge addressed in this paper is the data network used to collect, process, compresses and store Infrared data. A total of 114 Mbps of raw information must be collected from 19 sources and delivered to the two redundant data processing units across a twenty meter deplo...
Keywords: MARKET RESEARCH; ECONOMIC ANALYSIS; DISTRIBUTED PROCESSING; PROGRAMMING (SCHEDULING); COMPUTER NETWORKS; OPTIMIZATION; COMPUTATIONAL GRIDS; MATHEMATICAL MODELS
Downloads: 116
[texts]Development and flight test results of an autothrottle control system at Mach 3 cruise - Gilyard, G. B.
Flight test results obtained with the original Mach hold autopilot designed the YF-12C airplane which uses elevator control and a newly developed Mach hold system having an autothrottle integrated with an altitude hold autopilot system are presented. The autothrottle tests demonstrate good speed control at high Mach numbers and high altitudes while simultaneously maintaining control over altitude and good ride qualities...
Keywords: FLUIDIZED BED PROCESSORS; HEAT EXCHANGERS; HEAT STORAGE; THERMAL ENERGY; COMPUTER PROGRAMS; ECONOMIC ANALYSIS; FURNACES; WASTE ENERGY UTILIZATION
Downloads: 95
[texts]Design of a Microgravity Spray Cooling Experiment - Baysinger, Kerri M.
An analytical and experimental study was conducted for the application of spray cooling in a microgravity and high-g environment. Experiments were carried out aboard the NASA KC-135 reduced gravity aircraft, which provided the microgravity and high-g environments. In reduced gravity, surface tension flow was observed around the spray nozzle, due to unconstrained liquid in the test chamber and flow reversal at the heat source...
Keywords: AIR TRANSPORTATION; COMMERCIAL AIRCRAFT; AIRLINE OPERATIONS; ECONOMIC ANALYSIS; MARKET RESEARCH; CIVIL AVIATION; COST EFFECTIVENESS; PASSENGERS; AIRPORTS; OPERATIONS RESEARCH
Downloads: 57
[texts]Calculations of the moon's heat history at different concentrations of radioactive elements taking account of the material differentiation with melting - Arnatskaya, O. I.
A mathematical procedure for analyzing the heat conductivity of the lunar surface is discussed. The solution is based on homogeneous and laminated moon models and considers the effects of radioactive elements conveyed to the lunar surface by melting. The various parameters which introduce uncertainties into the numerical analysis are identified. The application of data obtained from radio astronomy and from analyses of lunar samples returned by the Apollo flights is explained...
Keywords: EARTH RESOURCES PROGRAM; WATER MANAGEMENT; ECONOMIC ANALYSIS; LANDSAT SATELLITES; REMOTE SENSORS; AGRICULTURE; COST EFFECTIVENESS; EARTH RESOURCES; ECONOMIC FACTORS; SATELLITE OBSERVATION
Downloads: 75
[texts]ASK Magazine - Pellen, Charle
Many of the stories in this magazine for NASA project managers are written by project managers, who use anecdotes from their experience to illustrate managerial lessons. This issue also includes features, an interview, and book reviews.
Keywords: AIR TRANSPORTATION; AIRLINE OPERATIONS; CIVIL AVIATION; AIR CARGO; AIR TRAFFIC; AIRCRAFT SAFETY; COMMERCE; DECISION MAKING; ECONOMIC ANALYSIS
Downloads: 96
[texts]Viking Orbiter Completion Mission and Viking Lander Monitor Mission - Gillette, R. L
The mission objectives and status of the Viking-Orbiter Completion Mission and the Lander Monitor Mission are briefly discussed. The objective of the Orbiter Completion Mission is to obtain moderate resolution photographic coverage of Martian surface areas not previously photographed or inadequately covered during the earlier survey mission. The objectives of the Lander Monitor Mission are to: Obtain S-band ranging data from the surface of Mars periodically over a long time span for the conduct ...
Keywords: COMMERCIAL AIRCRAFT; COMPUTER PROGRAMS; ECONOMIC ANALYSIS; LIFE CYCLE COSTS; AIRCRAFT DESIGN; CDC 6600 COMPUTER; JET AIRCRAFT; MATHEMATICAL MODELS; TRADEOFFS
Downloads: 86
[texts]Flow and force equations for a body revolving in a fluid - Zahm, A. F
A general method for finding the steady flow velocity relative to a body in plane curvilinear motion, whence the pressure is found by Bernoulli's energy principle is described. Integration of the pressure supplies basic formulas for the zonal forces and moments on the revolving body. The application of the steady flow method for calculating the velocity and pressure at all points of the flow inside and outside an ellipsoid and some of its limiting forms is presented and graphs those quantities f...
Keywords: COMPUTER PROGRAMS; ECONOMIC ANALYSIS; SOLAR HEATING; SOLAR HOUSES; COST ANALYSIS; COST EFFECTIVENESS; FEASIBILITY ANALYSIS; SOLAR COLLECTORS; SYSTEMS ENGINEERING
Downloads: 98
[texts]The Telecommunications and Data Acquisition Report - NON
Developments in Earth-based radio technology affecting space communications, geodynamics, and astrophysics are discussed.
Keywords: ELECTROMAGNETIC PROPULSION; RAILGUN ACCELERATORS; ROCKET LAUNCHERS; ECONOMIC ANALYSIS; FEASIBILITY ANALYSIS; RADIOACTIVE WASTES; SAFETY FACTORS; SYSTEMS ANALYSIS; WASTE DISPOSAL
Downloads: 194
[texts]Crash Testing of Helicopter Airframe Fittings - Clarke, Charles W.
As part of the Rotary Wing Structures Technology Demonstration (RWSTD) program, a surrogate RAH-66 seat attachment fitting was dynamically tested to assess its response to transient, crash impact loads. The dynamic response of this composite material fitting was compared to the performance of an identical fitting subjected to quasi-static loads of similar magnitude. Static and dynamic tests were conducted of both smaller bench level and larger full-scale test articles...
Keywords: COMPLEX SYSTEMS; NETWORKS; SYSTEMS ENGINEERING; DISTRIBUTED PROCESSING; CONTROL THEORY; ARTIFICIAL INTELLIGENCE; MACHINE LEARNING; GAME THEORY; ECONOMIC ANALYSIS
Downloads: 99
[texts]Fifty Years of Flight Research: An Annotated Bibliography of Technical Publications of NASA Dryden Flight Research Center, 1946-1996 - Fisher, David F
Titles, authors, report numbers, and abstracts are given for more than 2200 unclassified and unrestricted technical reports and papers published from September 1946 to December 1996 by NASA Dryden Flight Research Center and its predecessor organizations. These technical reports and papers describe and give the results of 50 years of flight research performed by the NACA and NASA, from the X-1 and other early X-airplanes, to the X-15, Space Shuttle, X-29 Forward Swept Wing, and X-31 aircraft...
Keywords: INTERNATIONAL SPACE STATION; ORBITAL SERVICING; REUSABLE LAUNCH VEHICLES; SPACE COMMERCIALIZATION; ECONOMIC ANALYSIS; DEFENSE PROGRAM; COST REDUCTION; MANAGEMENT PLANNING; OPERATING COSTS
Downloads: 296
[texts]SPE propulsion electrolyzer for NASA's integrated propulsion test article - NON
Hamilton Standard has delivered a 3000 PSI SPE Propulsion Electrolyzer Stack and Special Test Fixture to the NASA Lyndon B. Johnson Space Center (JSC) Integrated Propulsion Test Article (IPTA) program in June 1990, per contract NAS9-18030. This prototype unit demonstrates the feasibility of SPE-high pressure water electrolysis for future space applications such as Space Station propulsion and Lunar/Mars energy storage...
Keywords: COST ANALYSIS; INTERNATIONAL TRADE; ECONOMIC ANALYSIS; ECONOMIC DEVELOPMENT; ECONOMICS; LUNAR BASES; PERSONNEL; SPACE COLONIES; SPACE COMMERCIALIZATION; COST REDUCTION
Downloads: 167
[texts]Skylab mission report, third visit - NON
An evaluation is presented of the operational and engineering aspects of the third Skylab visit, including information on the performance of the command and service module and the experiment hardware, the crew's evaluation of the visit, and other visit-related areas of interest such as biomedical observations. The specific areas discussed are contained in the following: (1) solar physics and astrophysics investigations; (2) Comet Kohoutek experiments; (3) medical experiments; (4) earth observati...
Keywords: ECONOMIC ANALYSIS; UTILITIES; ENERGY POLICY; INDUSTRIAL ENERGY; SYSTEMS ANALYSIS; WASTE ENERGY UTILIZATION; ELECTRIC POWER PLANTS; FUEL CONSUMPTION; HEATING; RESOURCES MANAGEMENT
Downloads: 133
[texts]Anthropometry in sizing and design - Mcconville, J. T
The application of human body-size diversity and quantification to engineering design is discussed. The following procedures are outlined for using anthropometric data in the development of effective sizing programs: (1) selection of the appropriate data; (2) selection of the key sizing dimensions; (3) selection of intervals for the key dimensions; (4) development of dimensional data for each sizing category; (5) conversion of summary data to appropriate design values; (6) preparation of a tarif...
Keywords: AIR CARGO; TRANSPORTATION; NETWORK SYNTHESIS; SYSTEMS ENGINEERING; AIR TRANSPORTATION; ECONOMIC ANALYSIS; GROUND HANDLING; PAYLOADS; SCHEDULING; TERMINAL FACILITIES
Downloads: 122
[texts]Comparison of Tone Mode Measurements for a Forward Swept and Baseline Rotor Fan - Heidelberg, Laurence J
A forward swept fan, designated the Quite High Speed Fan (QHSF), was tested in the NASA Glenn 9- by 15-foot Low Speed Wind Tunnel to investigate its noise reduction relative to a baseline fan of the same aerodynamic performance. The design objective of the QHSF was a 6 dB reduction in Effective Perceived Noise Level relative to the baseline fan at the takeoff condition. The design noise reduction was to be a result of lower levels of multiple pure tone noise due to the forward swept rotor, and l...
Keywords: AIR TRANSPORTATION; AIRCRAFT PILOTS; AIR TRAFFIC CONTROLLERS (PERSONNEL); AIRLINE OPERATIONS; AIR TRAFFIC; ECONOMIC ANALYSIS; GOVERNMENT/INDUSTRY RELATIONS; ECONOMIC FACTORS; CONFERENCES; PAVEMENTS; RUNWAYS
Downloads: 52
[texts]On the problem of neon - Reeves, Huber
No Abstract Available
Keywords: BIOTECHNOLOGY; LUNAR BASES; MINING; SURFACE PROPERTIES; CHEMICAL COMPOSITION; CONFERENCES; ECONOMIC ANALYSIS; LOGISTICS; LUNAR RESOURCES; LUNAR SURFACE; INFRARED SPECTROSCOPY; LIFE SUPPORT SYSTEMS
Downloads: 67
[texts]Aeronautics and space report of the President: 1981 activities - NON
Achievements in the aeronautics and space program by function are summarized. Activities in communications, Earth's resources and environment, space science, space transportation, international activities, and aeronautics are included.
Keywords: ACTIVE CONTROL; STRUCTURAL WEIGHT; WIND TUNNEL TESTS; WINGLETS; AERODYNAMIC CONFIGURATIONS; BOEING 747 AIRCRAFT; FUEL CONSUMPTION; WING LOADING; WING TIPS; AILERONS; AIRCRAFT DESIGN; ECONOMIC ANALYSIS
Downloads: 93
[texts]A preliminary economic evaluation of Marine Corps acquisition practices: UHF satellite communication ground terminal acquisitions - Psillas, Christopher F.;Psillas, Christopher F
Thesis advisor(s): Gates, William R
Keywords: Administration and Management; Radio Communications; Communication terminals; Naval procurement; Marine corps planning; Satellite communications; Acquisition; Command and control systems; Decision making; Economic analysis; Economics; Management; Marine corps; Telecom
Downloads: 28
[texts]Development of integrated programs for Aerospace-vehicle Design (IPAD): Product program management systems - Isenberg, J. M.
The Integrated Programs for Aerospace Vehicle Design (IPAD) is a computing system to support company-wide design information processing. This document presents a brief description of the management system used to direct and control a product-oriented program. This document, together with the reference design process (CR 2981) and the manufacture interactions with the design process (CR 2982), comprises the reference information that forms the basis for specifying IPAD system requirements.
Keywords: ENGINE DESIGN; RECONNAISSANCE AIRCRAFT; TURBOJET ENGINES; TURBOROCKET ENGINES; U-2 AIRCRAFT; HIGH ALTITUDE; HYDROGEN FUELS; TECHNOLOGY ASSESSMENT; AIRCRAFT ENGINES; ECONOMIC ANALYSIS; HISTORIES; HYDROGEN ENGINES; HYDROGEN OXYGEN ENGINES
Downloads: 77
[texts]Source structure errors in radio-interferometric clock synchronization for ten measured distributions - Thomas, J. B
The effects of source structure on radio interferometry measurements were investigated. The brightness distribution measurements for ten extragalactic sources were analyzed. Significant results are reported.
Keywords: ALKALI METALS; ECONOMIC ANALYSIS; ENERGY TECHNOLOGY; PRODUCTION ENGINEERING; SILICON COMPOUNDS; FAST TEST REACTORS; HIGH TEMPERATURE NUCLEAR REACTORS; METAL HALIDES; REACTION KINETICS; SILANES; SILICON; SOLAR CELLS; CRYSTAL GROWTH
Downloads: 64
[texts]Characteristics of coupled nongray radiating gas flows with ablation product effects about blunt bodies during planetary entries - Sutton, K
A computational method was developed for the fully-coupled solution of nongray, radiating gas flows with ablation product effects about blunt bodies during planetary entries. The treatment of radiation accounts for molecular band, continuum, and atomic line transitions with a detailed frequency dependence of the absorption coefficient. The ablation of the entry body was solved as part of the solution for a steady-state ablation process...
Keywords: ECONOMIC ANALYSIS; ENERGY TECHNOLOGY; FEASIBILITY ANALYSIS; WINDMILLS (WINDPOWERED MACHINES); WINDPOWERED GENERATORS; ELECTRIC POWER SUPPLIES; NETHERLANDS; WATER CONSUMPTION; WEST INDIES; WINDPOWER UTILIZATION; DENMARK; ELECTRIC POWER PLANTS; ENERGY REQUIREMENTS
Downloads: 178
[texts]Studies on the control of cabbage caterpillars with derris in the South (Volume no.615) - Reid, W. J. (William John), 1902-
Caption title
Keywords: Cabbage Diseases and pests; cabbage; plant cultural practices; field experimentation; insecticides; rotenone; experimental design; plant damage; dust formulations; dusting; economic analysis; Crocidolomia pavonana; Trichoplusia ni
Downloads: 29
[movies]MIT 11.945 Springfield Studio, Fall 2005 - MIT OpenCourseWare
The Springfield Studio is a practicum course that focuses on the economic, programmatic and social renewal of an urban community in Springfield, Massachusetts by combining classroom work with an applied class project. The course content covers the areas of neighborhood economic development and the related analysis and planning tools used to understand and assess urban conditions from an economic and community development perspective...
Keywords: economic development; civic planning; community planning; urban renewal; phasing; neighborhood revitalization; Springfield; Massacusetts; community interaction; urban fabric; economic development; social renewal; entrepreneurship; economic analysis; small business development; politics
Downloads: 345
[texts]Measurements in a large angle oblique jet impingement flow - Foss, J. F
The flow field associated with the oblique impingement of an axisymmetric jet was investigated in the externally blown flap configuration for the STOL aircraft. The passive and active spreading characteristics of the shallow angle (a greater than or = approximately to 15 degrees) oblique impingement flow, the role of the initially azimuthal vorticity field, and the stagnation point region were studied, and compared to the large ( a = 45 degres) oblique jet impingement flow...
Keywords: AIRCRAFT FUELS; HYDROGEN FUELS; VENTS; GAS RECOVERY; LIQUID HYDROGEN; AIRCRAFT DESIGN; COLD GAS; COST ESTIMATES; ECONOMIC ANALYSIS; ENERGY CONSERVATION; FLIGHT TESTS
Downloads: 95
[texts]Cosmic Ray-Air Shower Measurement from Space - Takahashi, Yoshiyuk
A feasibility study has been initiated to observe from space the highest energy cosmic rays above 1021 eV. A satellite observatory concept, the Maximum-energy Auger (Air)-Shower Satellite (MASS), is recently renamed as the Orbital Wide-angle Collector (OWL) by taking its unique feature of using a very wide field-of-view (FOV) optics. A huge array of imaging devices (about 10(exp 6) pixels) is required to detect and record fluorescent light profiles of cosmic ray cascades in the atmosphere...
Keywords: AIRCRAFT PERFORMANCE; ECONOMIC ANALYSIS; COST EFFECTIVENESS; LIFE CYCLE COSTS; TECHNOLOGY ASSESSMENT; AIRCRAFT ENGINES; TRANSPORT AIRCRAFT; CIVIL AVIATION; AIR TRANSPORTATION; FEASIBILITY ANALYSIS; AIRCRAFT CONFIGURATIONS; COST ANALYSIS; SUBSONIC SPEED; AIRCRAFT PRODUCTION COSTS
Downloads: 77
[texts]The solar wind structures associated with cosmic ray decreases and particle acceleration in 1978-1982 - Cane, H. V.
The time histories of particles in the energy range 1 MeV to 1 GeV at times of all greater than 3 percent cosmic ray decreases in the years 1978 to 1982 are studied. Essentially all 59 of the decreases commenced at or before the passages of interplanetary shocks, the majority of which accelerated energetic particles. We use the intensity-time profiles of the energetic particles to separate the cosmic ray decreases into four classes which we subsequently associate with four types of solar wind st...
Keywords: EXTRATERRESTRIAL RESOURCES; GENERAL OVERVIEWS; HIGH VACUUM; LUNAR SOIL; MICROGRAVITY; MINING; OXYGEN PRODUCTION; SOLAR RADIATION; TRADEOFFS; LUNAR BASES; LUNAR RESOURCES; MARS (PLANET); MISSION PLANNING; NASA SPACE PROGRAMS; SPACE BASES; ASTEROIDS; ECONOMIC ANALYSIS
Downloads: 77
[texts]Radio noise measurements in the long-wave band at Thule, Greenland - Fraser-Smith, A. C.
In August 1985, a Stanford University ELF/VLF radiometer was installed at Thule, Greenland to make measurements of the natural ELF/VLF (frequencies in the range 10 Hz to 32 kHz) radio noise background. Thule is very nearly unique in that it lies not only at a relatively high geographic latitude (76.55 deg) but it is also very close to the north geomagnetic pole, with the result that its radio noise background not only contains the normal lightning-generated noise typical of the lower latitudes (...
Keywords: EXTRATERRESTRIAL RESOURCES; ECONOMIC FACTORS; ENERGY CONVERSION EFFICIENCY; RADIATION DAMAGE; RADIOACTIVE WASTES; REACTOR SAFETY; REACTOR TECHNOLOGY; ROBOTS; SPACE COMMERCIALIZATION; FUSION REACTORS; HELIUM ISOTOPES; LUNAR SOIL; MINING; NUCLEAR ELECTRIC POWER GENERATION; TECHNOLOGY ASSESSMENT; COSTS; ECONOMIC ANALYSIS
Downloads: 120
[texts]International Journal of Management, Economics and Social Sciences (IJMESS) - IJMESS
International Journal of Management, Economics and Social Sciences (IJMESS) is a double blind peer-reviewed, quarterly, multidisciplinary international research journal. IJMESS is particularly interested in publishing innovative papers in the areas of management, strategic management, organizational behaviour, organization development and change, innovation management, organizational theories, human resource management, business strategies, management information systems, financial management, m...
Keywords: International Journal of Management; Economics and Social Sciences; blind peer-reviewed; multidisciplinary; international research journal; IJMESS; publishing; innovative papers; management; strategic management; organizational behaviour; organization development and change; innovation management; organizational theories; human resource management; business strategies; management information systems; financial management; marketing management; business policy; economics; economic analysis; econometrics; statistics; organizational politics; social issues; social work; social welfare; women’s studies
Downloads: 424
[audio]Audio Wikinews Brief : August 02, 2010 - Wikinews
As California attempts to get the Crown Fire under control, floods in Pakistan leave at least 800 dead; after 100 days, the Deepwater Horizon oil spill still threatens the Gulf coast; Chelsea Clinton gets married and, in history, one of the giants of American literature dies in 1988. Audio Wikinews is a recap of the days top stories from Wikinews.org
Keywords: wikinews; news; wikimedia; audio; Crown Fire; California; Los Angeles County Fire Department; Rancho Vista; wildfire; Pakistan; flood; Khyber Pakhtunkhwa; Pakistan Meteorological Department; Sohail Rahman; Airblue Flight 202; Margalla Hills; Junaid Amin; Deepwater Horizon; oil spill; Gulf of Mexico; Paul Zukunft; US Justice Department; Halliburton; Transocean; BP; recession; Bureau of Economic Analysis; US Commerce Department; Barack Obama; Chevrolet Volt; General Motors; GM; Detroit; Robert Gibbs; Teri Quigley; Greg Biffle; NASCAR; 2010 Sunoco Red Cross Pennsylvania 500; Pocono Raceway; Tony Stewart; Carl Edwards; Kevin Harvick; Denny Hamlin; Where I'm Calling From; Raymond Carver; dirty realism; minimalism; Ernest Hemingway; Anton Chekhov; A Small Good Thing; National Book Award; Cathedral; Richard Ford; Tobias Wolff; Maryann Burk; Chico State University; Tess Gallagher; John Gardner; Gordon Lish; John Cheever; Milan Kundera
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